the smallest angle of incident light reflected onto a surface at which total reflection takes place
the angle of attack at which the flow about an aerofoil changes abruptly, with corresponding abrupt changes in the lift and drag
| 单词 | critical angle |
| 释义 | critical anglenounthe smallest angle of incident light reflected onto a surface at which total reflection takes place the angle of attack at which the flow about an aerofoil changes abruptly, with corresponding abrupt changes in the lift and drag |
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